JP5046708B2 - Airbag opening structure, inner case and airbag device - Google Patents

Description

  The present invention relates to an airbag opening structure, an inner case, and an airbag device for an airbag mounted on a vehicle such as an automobile, and more particularly to an airbag that can smoothly open an airbag into a vehicle when the airbag device is operated. The present invention relates to a bag opening portion structure, an inner case, and an airbag device.

  In general, a vehicle such as an automobile is equipped with an airbag device that restrains an occupant by inflating and deploying the airbag in the vehicle at the time of a collision or the like. Such an airbag device includes an airbag device for a driver seat installed in a steering wheel, an airbag device for a passenger seat installed in an instrument panel, a side airbag device installed in a vehicle side or seat, and an upper door portion. Various types such as an interior curtain airbag device have been developed and adopted. These airbag devices are stored in the vehicle structure so that the presence of the airbag device is not conscious in normal times, and the airbag is inflated by breaking through the vehicle structure in an emergency such as a collision. . Therefore, the air bag opening part of the air bag device must be covered so as to be assimilated with the interior of the vehicle in normal times, while the air bag must be opened smoothly and quickly in an emergency. Don't be.

  4A and 4B are diagrams showing the passenger seat airbag device, in which FIG. 4A is a cross-sectional view and FIG. 4B is an enlarged view of a portion B in FIG. The airbag device for the passenger seat is installed on the vehicle body side of the instrument panel 41 disposed on the front surface of the passenger seat. Further, as shown in FIG. 4A, the passenger seat airbag device includes an airbag (not shown) that is normally folded and inflated and deployed in an emergency, and an inflator that supplies gas to the airbag. 42, a retainer 43 that accommodates the airbag and inflator 42, an outer panel 44 that is mounted on the instrument panel 41, and an inner case 45 that is connected to the inside of the outer panel 44 and engages the retainer 43. I have. The retainer 43 is connected and fixed to the fixing member 47 via the joining member 46.

  The instrument panel 41 is formed with an opening 41a so that the airbag can be opened. An outer panel 44 is attached to the opening 41a with a clip 44a or the like, and the surface thereof is processed so as to be assimilated with the instrument panel 41. A plurality of notches 44b are formed on the inner side of the outer panel 44 so as to be easily broken when the airbag is deployed. The outer panel 44 is divided into a fixing portion 44c and a door portion 44d by the notches 44b.

  The inner case 45 includes an inner panel 45 a connected to the inner side of the outer panel 44, and a side wall 45 b that forms a space for accommodating the retainer 43. A plurality of locking holes 45c are formed in the side wall 45b so that the hooks 43a connected to the retainer 43 are locked. Further, the inner panel 45a is divided into two at the center, and each inner panel 45a has a support part 451 connected to the fixing part 44c of the outer panel 44 and a flap part 452 connected to the door part 44d. And a hinge portion 453 formed between the support portion 451 and the flap portion 452. As shown in FIG. 4B, the hinge portion 453 has a substantially U shape, and normally the thicknesses t1 to t4 are formed uniformly.

  The passenger seat airbag device described above operates the inflator 42 in an emergency such as a vehicle collision to supply gas to an airbag (not shown). The airbag is inflated in the retainer 43 and the inner case 45, and presses the inner panel 45a and the outer panel 44. The outer panel 44 is divided by a notch 44b between the door portions 44d to open the airbag into the vehicle. As the airbag is inflated and deployed, the door portion 44d of the outer panel 44 rotates toward the instrument panel 41 and is further divided by a notch 44b between the fixed portion 44c and the door portion 44d. At this time, since the fixing portion 44c and the door portion 44d of the outer panel 44 are respectively connected to the inner panel 45a, the door portion 44d is not dispersed even if divided by the notch 44b. The door portion 44d is further rotated toward the instrument panel 41 by the action of the hinge portion 48 of the inner panel 45a so as to be opened.

Here, the inner case 45 is generally formed of a resin and is easily affected by ambient temperature, and is hardened or softened. Therefore, in order to appropriately open the outer panel 44, the shape of the hinge portion 453 is used. It is necessary to devise. For example, the hinge part described in Patent Document 1 is formed so as to bulge in a direction away from the outer panel and gradually become thinner from the fixed part side toward the door reinforcing part side (Patent Document). 1, see FIG. Moreover, the hinge part of patent document 2 is formed so that a bending | flexion top part may become thinner than the other part of a curved hinge part (refer patent document 2, FIG. 4).
Japanese Patent Laying-Open No. 2006-96267, FIG. Japanese translation of PCT publication No. 2003-137057, FIG.

  However, in the hinge portion described in Patent Document 1, since the fixed portion side is formed to be thick overall, the amount of extension when the outer panel is opened is small, and the entire hinge portion (that is, the diameter of the U-shaped portion). Must be formed to make up for the shortfall. However, when the diameter of the U-shaped portion is increased, the non-welded portion between the outer panel and the inner panel increases, and the effect of reinforcing the outer panel is reduced. Further, in order to avoid such a problem, when the U-shape is made vertically long, there arises a problem that manufacturing becomes difficult and causes a cost increase.

  Further, in the hinge structure described in Patent Document 2, since the portion (bent apex) that is most likely to be stretched when the outer panel is opened is thinly formed, there is a problem that stress is excessively concentrated on the bent apex.

  The present invention was devised in view of the above-described problems, and is less susceptible to the influence of the ambient temperature, can be downsized in the hinge portion, and can open the airbag smoothly into the vehicle. An object is to provide a partial structure, an inner case, and an airbag device.

According to the present invention, the outer panel includes an opening for opening an airbag formed in a vehicle structure, an outer panel that covers the opening, and an inner panel that is connected to the inside of the outer panel. Has a door part that opens the opening part when the airbag is deployed, and a fixing part connected to the vehicle structure, and the inner panel has a flap part connected to the door part, and the fixing part An airbag opening portion structure having a support portion connected to the flap portion and a substantially U-shaped hinge portion formed between the flap portion and the support portion. The hinge portion includes a top portion and the support portion. A support part side connection part connected to the part, a flap side connection part connected to the flap part, and the top part and the support part side connection formed between the top part and the support part side connection part. Part and said hula Anda low rigidity low-rigidity area than flop side connecting portion, the hinge portion, the airbag is deployed, wherein said is rotatably configured as a starting point the low rigidity portion, it during airbag deployment A partial structure is provided. Further, the hinge portion is formed between the top portion and the flap side connection portion, and has a low rigidity portion that is less rigid than the top portion, the support portion side connection portion, and the flap side connection portion. May be. Moreover, it is preferable that the said low-rigidity part is a thin part formed thinner than the other part of the said hinge part. Furthermore, it is preferable that the said thin part is smoothly connected with the adjacent thick part.

Further, according to the present invention, the inner case is connected to the inner side of the outer panel that covers the opening for opening the airbag formed in the vehicle structure and is accommodated in the opening. A door portion that opens the opening when the airbag is deployed, and a fixing portion that is connected to the vehicle structure, and the inner case stores the inner panel that is connected to the outer panel and the airbag The inner panel includes a flap portion connected to the door portion, a support portion connected to the fixed portion, the flap portion, and the support portion. anda hinge portion of substantially U-shape formed between the hinge portion, a top portion, a supporting portion side connecting portion to be connected to the support portion, hula connected to the flap portion And a low rigidity portion that is formed between the top portion and the support portion side connection portion and is less rigid than the top portion, the support portion side connection portion, and the flap side connection portion. The hinge case is configured to be rotatable with the low-rigidity portion as a starting point when the airbag is deployed . Further, the hinge portion is formed between the top portion and the flap side connection portion, and has a low rigidity portion that is less rigid than the top portion, the support portion side connection portion, and the flap side connection portion. May be. Moreover, it is preferable that the said low-rigidity part is a thin part formed thinner than the other part of the said hinge part. Furthermore, it is preferable that the said thin part is smoothly connected with the adjacent thick part.

Further, according to the present invention, an airbag that is normally folded and inflated and deployed in an emergency, an inflator that supplies gas to the airbag, a retainer that accommodates at least the airbag, and a vehicle structure are provided. An airbag device having an outer panel that covers the formed opening for opening the airbag, and an inner case that is connected to the inside of the outer panel and engages the retainer, wherein the outer panel is an airbag. A retainer having a door portion that opens the opening portion during deployment and a fixing portion connected to the vehicle structure, the inner case including an inner panel connected to the outer panel, and an airbag. A side wall that forms a space for housing the inner panel, and the inner panel includes a flap portion connected to the door portion, and a fixed portion. Includes a support portion which is continued, and a hinge portion that is substantially U-shaped formed between the flap portion and the supporting portion supporting the hinge portion, which is connected to the top portion, said support portion A part-side connection part, a flap-side connection part connected to the flap part, and the top part, the support part-side connection part, and the flap-side connection are formed between the top part and the support part-side connection part. There is provided an airbag device characterized in that the hinge portion is configured to be rotatable around the low-rigidity portion when the airbag is deployed. The Further, the hinge portion is formed between the top portion and the flap side connection portion, and has a low rigidity portion that is less rigid than the top portion, the support portion side connection portion, and the flap side connection portion. May be. Moreover, it is preferable that the said low-rigidity part is a thin part formed thinner than the other part of the said hinge part. Furthermore, it is preferable that the said thin part is smoothly connected with the adjacent thick part.

  According to the airbag opening part structure, inner case, and airbag device of the present invention described above, the support part that requires rigidity as the hinge part is formed by forming the low rigidity part between the top part of the hinge part and the support part. In addition, while maintaining the rigidity of the top portion, the low-rigidity portion can act as a starting point when rotating the door portion of the outer panel, can be made less susceptible to the influence of ambient temperature, and the hinge portion can be downsized. be able to. Therefore, the airbag can be smoothly opened in the vehicle.

  Furthermore, if a low-rigidity part is formed between the top part of the hinge part and the flap part, it is possible to increase the starting point when rotating the door part of the outer panel, and to be less affected by the ambient temperature. In addition, the hinge portion can be reduced in size.

  Moreover, the low-rigidity part can be formed easily and at low cost by making the low-rigidity part a thin-walled part that is thinner than other parts of the hinge part. Furthermore, the stress concentration generated in the hinge portion can be reduced by smoothly connecting the thin portion with the adjacent thick portion.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. Here, FIG. 1 is a view showing a passenger seat airbag device, in which (A) is a cross-sectional view and (B) is an enlarged view of a portion B in FIG. 1 (A).

  The passenger seat airbag apparatus shown in FIG. 1 is installed on the vehicle body side of an instrument panel 1 disposed in front of the passenger seat. As shown in FIG. 1A, the passenger seat airbag device includes an airbag (not shown) that is normally folded and inflated and deployed in an emergency, and an inflator that supplies gas to the airbag. 2, a retainer 3 that accommodates the airbag and the inflator 2, an outer panel 4 that is attached to the instrument panel 1, and an inner case 5 that is connected to the inside of the outer panel 4 and engages the retainer 3. I have. The retainer 3 is connected and fixed to a fixing member 7 via a joining member 6. The inflator 2 may be externally attached to the retainer 3 without being housed in the retainer 3.

  The opening 1a for opening the airbag is formed in a substantially rectangular shape in the instrument panel 1 so that the airbag can be opened. An outer panel 4 is attached to the opening 1a with a plurality of clips 4a, and the surface thereof is processed so as to be assimilated with the instrument panel 1. Although the case where the outer panel 4 and the instrument panel 1 are separate members has been described here, the outer panel 4 may be formed integrally with the instrument panel 1. In addition, a plurality of notches 4b are formed inside the outer panel 4 so as to be easily broken when the airbag is deployed. The outer panel 4 is divided into a pair of fixing portions 4c and 4c and a pair of door portions 4d and 4d by the notches 4b. Note that the three notches 4b, 4b, 4b shown in FIG. 1A may be formed by a series of linear grooves.

  The inner case 5 includes an inner panel 5 a connected to the inner side of the outer panel 4 and a side wall 5 b that forms a space for accommodating the retainer 3. Here, for joining the outer panel 4 and the inner panel 5a, various joining methods such as vibration welding, ultrasonic welding, bolting, riveting, adhesive fastening, and heat caulking can be applied. A plurality of locking holes 5c are formed in the side wall 5b so that the hooks 3a connected to the retainer 3 are locked. Further, the inner panel 5a is divided into two at the center, and each inner panel 5a has a support part 51 connected to the fixing part 4c of the outer panel 4 and a flap part 52 connected to the door part 4d. And a hinge portion 53 formed between the support portion 51 and the flap portion 52. The hinge part 53 is substantially U-shaped so as to be convex on the side opposite to the airbag opening direction. The airbag opening portion structure includes an opening 1a, an outer panel 4, and an inner panel 5a.

  As shown in FIG. 1B, the hinge portion 53 includes a top portion 53a, a support portion side connection portion 53b that connects the support portion 51 and the top portion 53a, and a flap side that connects the flap portion 52 and the top portion 53a. A connecting portion 53c, and the support portion-side connecting portion 53b is provided with a thin portion 54 that is thinner than other portions of the hinge portion 53. Moreover, the thin part 54 is smoothly connected with the adjacent thick part. By forming the thin portion 54 smoothly, stress concentration generated in the hinge portion 53 can be relaxed. Here, when the thickness of the thick part of the support part side connection part 53b is t1, the thickness of the thin part 54 is t2, the thickness of the top part 53a is t3, and the thickness of the flap side connection part 53c is t4, The thickness t1, the thickness t3, and the thickness t4 are substantially the same thickness, and the thickness t2 of the thin portion 54 is formed thinner than the other thicknesses t1, t3, and t4. However, in order to ensure the rigidity necessary for the hinge of the hinge portion 53, the thinnest portion of the thickness t2 is about 75 to 95% of the other thicknesses t1, t3, and t4, more preferably 80 to 90. It is preferable to set the thickness to about%. In addition, in FIG. 1, although the inner side (airbag side) of the support part side connection part 53b is dented and thickness is made thin, even if the other side (outer panel side) is dented and thickness is made thin, It is also possible to dent both sides to reduce the wall thickness. In addition, although the case where the thicknesses t1, t3, and t4 are substantially the same is illustrated, the thicknesses t1, t3, and t4 are substantially the same as long as the rigidity can be ensured. Need not be.

  Thus, when the thin part 54 is formed in the support part side connection part 53 b of the hinge part 53, the thin part 54 becomes a part (low rigidity part) having lower rigidity than the other parts of the hinge part 53. Therefore, the thin portion 54 becomes a starting point for rotating the hinge portion 53 when the airbag is opened. That is, even if the rigidity of the support part 51 that fixes and supports the hinge part 53 and the top part 53a that extends when the hinge part 53 rotates is maintained at the required rigidity, the hinge part 53 can be rotated by the thin part 54, and the thin part The shape of the hinge portion 53 can be designed to be smaller than when the portion 54 is not provided.

  The thin-walled portion 54 is merely an example of a low-rigidity portion. In addition, a plurality of punch holes are formed in the support portion-side connection portion 53b, a plurality of small irregularities are formed, or a plurality of cuts are made on the surface. Various forms such as forming a plurality of slits, changing the material of the support portion side connection portion 53b to one having low rigidity, and the like can be adopted.

  Next, the operation when the airbag device for the passenger seat shown in FIG. 1 is deployed will be described with reference to FIG. Here, FIG. 2 is a diagram showing the operation of the passenger airbag device shown in FIG. 1 when the airbag is deployed, (A) is the initial stage of airbag inflation, and (B) is the outer panel dividing stage. (C) is the door rotation stage, and (D) is the door rotation end stage.

  The initial stage of inflation of the airbag shown in FIG. 2A is a stage in which the airbag 8 is inflated inside the inner case 5 and presses the inner panel 5a. The airbag device supplies gas from the inflator 2 to the airbag 8 when it receives a predetermined signal from an ECU (electronic control unit) that senses or detects a vehicle collision or the like. The airbag 8 is inflated in the direction of the arrow in the figure, and contacts and presses the inner panel 5a. At this time, in the present invention, since the hinge portion 53 can be downsized, the hinge portion 53 is unlikely to get in the way when the airbag 8 is inflated, and the airbag can be smoothly opened into the vehicle.

The outer panel dividing step shown in FIG. 2B is a step in which the airbag 8 presses the outer panel 4 and the outer panel 4 is divided into the fixing portions 4c and 4c and the door portions 4d and 4d. At this time, than the notch 4b between the fixing portion 4c and the door portion 4d, as towards the notch 4b between the door portion 4d and the door portion 4d is easily divided into first, and the depth of the notch 4b, the outer panel The thickness of 4 is set as appropriate. Moreover, although the door part 4d of the outer panel 4 is cut | disconnected from the fixing | fixed part 4c, since the inner panel 5a is connected inside, it does not become discrete. Note that the fixing portion 4 c is fixed to the instrument panel 1 by a clip 4 a so that it does not come off due to the inflation of the airbag 8.

  The door part rotation stage shown in FIG. 2C is a stage in which the door part 4d rotates toward the fixed part 4c around the hinge part 53 as the airbag 8 expands. At this time, the hinge portion 53 is pushed up by the inflation of the airbag 8 and extends upward. However, since the thin portion 54 is formed, the hinge portion 53 is easily rotated from the thin portion 54 as a starting point. Further, the top portion 53a of the hinge portion 53 is pulled most easily by the rotation of the door portion 4d and is most easily extended, but the top portion 53a is formed with a thickness that can withstand such tension. That is, even if the thickness is increased in order to increase the rigidity of the hinge portion 53, in the present invention, the rotation start point can be provided by forming the thin portion 54, and a sufficient amount of extension of the door portion 4d is ensured. be able to. Therefore, it is not necessary to enlarge the shape of the hinge part 53, and the hinge part 53 can be reduced in size.

  The door part rotation end stage shown in FIG. 2D is a stage where the door part 4d is bent toward the fixed part 4c. Depending on the shape of the airbag 8 and the situation in the vehicle, the state shown in FIG. 2D is not necessarily obtained, but the thin wall formed in the hinge portion 53 even in such a completely folded state. The presence of the part 54 allows the hinge part 53 to function.

  Next, another embodiment of the hinge part will be described. Here, FIG. 3 is a figure which shows other embodiment of a hinge part, (A) is 2nd embodiment, (B) is 3rd embodiment, (C) is 4th embodiment, (D). Is a fifth embodiment.

  In the second embodiment shown in FIG. 3A, the thickness of the support portion side joint portion 53b is gradually reduced from the thickness t1 on the support portion 51 side, and when the thickness reaches a predetermined thickness t2, the thickness t1 is reached. The thin portion 54 is formed so as to be smoothly connected to the top portion 53a having substantially the same thickness t3. In the third embodiment shown in FIG. 3B, the thin portion 54 is formed in a groove shape. In the fourth embodiment shown in FIG. 3C, the thin portion 54 is configured with two inclined surfaces. As shown in these embodiments, the thin-walled portion 54 can have various shapes.

  In the fifth embodiment shown in FIG. 3D, a thin-walled portion 55 having low rigidity is also formed in the flap-side connecting portion 53c. For example, the thickness t1 and the thickness t3 are formed to have substantially the same thickness, the thickness t2 and the thickness t4 are formed to have substantially the same thickness, and the thicknesses t2 and t4 are formed to be thinner than the thicknesses t1 and t3. ing. Thus, in addition to the support part side joint part 53b, since the thin part 55 was formed also in the flap side connection part 53c, the rotation starting point of the hinge part 53 can be increased and size reduction of the hinge part 53 is achieved. be able to. Although the case where the thickness t2 and the thickness t4 are reduced to substantially the same thickness has been described here, the thickness t2 and the thickness t4 may be designed so as to be different from each other. Also, the thickness t1 and the thickness t3 need not be substantially the same as long as the rigidity can be ensured.

The thin-walled portion 55 is only an example of a low-rigidity portion. Besides, a plurality of punch holes are formed in the flap-side connection portion 53c , a plurality of small irregularities are formed, or a plurality of cuts are made on the surface. Various forms such as forming a plurality of slits or changing the material of the flap side connection portion 53c to one having low rigidity can be employed. Moreover, the shape of the thin part 55 can employ | adopt the thing of the various shapes shown to FIG. 3 (A)-(C) similarly to the thin part 54. FIG.

  In the above-described embodiment, the description has been made based on the passenger seat airbag device, but the present invention is not limited to the passenger seat airbag device, and an airbag opening opening formed in the vehicle structure is provided. An outer panel that covers the opening, and an inner panel that is connected to the inside of the outer panel. The outer panel is a door that opens the opening when the airbag is deployed, and a fixed that is connected to the vehicle structure. The inner panel includes a flap portion connected to the door portion, a support portion connected to the fixed portion, and a substantially U-shaped hinge portion formed between the flap portion and the support portion. As long as the airbag opening portion structure has the structure, it can be applied to an airbag device provided in any part.

  Further, the present invention is not limited to the above-described embodiment. For example, the number of door portions and hinge portions may be one or three or more. The vehicle structure may be a door portion, a ceiling portion, a steering portion in addition to an instrument panel. Of course, various modifications can be made without departing from the spirit of the present invention.

It is a figure which shows the airbag apparatus for front passenger seats, (A) is sectional drawing, (B) is the B section enlarged view in FIG. 1 (A). It is the figure which showed the operation | movement at the time of airbag expansion | deployment of the airbag apparatus for passenger seats shown in FIG. 1, (A) is an airbag expansion initial stage, (B) is an outer panel division | segmentation stage, (C) is a door part. The rotation stage, (D) is the door rotation end stage. It is a figure which shows other embodiment of a hinge part, (A) is 2nd embodiment, (B) is 3rd embodiment, (C) is 4th embodiment, (D) is 5th embodiment. . It is a figure which shows the airbag apparatus for front passenger seats, (A) is sectional drawing, (B) is the B section enlarged view in FIG. 4 (A).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,41 Instrument panel 1a, 41a Opening part 2,42 Inflator 3,43 Retainer 3a, 43a Hook 4,44 Outer panel 4a, 44a Clip 4b, 44b Notch 4c, 44c Fixed part 4d, 44d Door part 5,45 Inner Case 5a, 45a Inner panel 5b, 45b Side wall 5c, 45c Locking hole 51,451 Support part 52,452 Flap part 53,453 Hinge part 53a Top part 53b Support part side connection part 53c Flap side connection part 54,55 Thin part 6 , 46 Joining member 7, 47 Fixing member 8 Air bag

Claims (6)

An opening for opening an airbag formed in a vehicle structure, an outer panel covering the opening, and an inner panel connected to the inside of the outer panel, the outer panel being A door portion that opens the opening; and a fixing portion that is connected to the vehicle structure. The inner panel includes a flap portion that is connected to the door portion, and a support portion that is connected to the fixing portion. And an airbag opening part structure having a substantially U-shaped hinge part formed between the flap part and the support part,
The hinge part is formed between a top part, a support part side connection part connected to the support part, a flap side connection part connected to the flap part, and the top part and the support part side connection part. And a low-rigidity portion having a rigidity lower than that of the top portion, the support-side connection portion, and the flap-side connection portion, and the hinge portion can be rotated from the low-rigidity portion when the airbag is deployed. An airbag opening portion structure characterized by being configured . The hinge part is formed between the top part and the flap side connection part and has a low rigidity part having lower rigidity than the top part, the support part side connection part, and the flap side connection part. The airbag opening portion structure according to claim 1.   3. The airbag opening part structure according to claim 1, wherein the low-rigidity part is a thin-walled part formed thinner than other parts of the hinge part.   The airbag opening part structure according to claim 3, wherein the thin part is smoothly connected to an adjacent thick part. An inner case connected to an inner side of an outer panel covering an opening for opening an airbag formed in a vehicle structure and accommodated in the opening;
The outer panel has a door portion that opens the opening when the airbag is deployed, and a fixing portion that is connected to the vehicle structure, and the inner case is an inner panel that is connected to the outer panel; A side wall that forms a space for accommodating a retainer in which an airbag is stored, and the inner panel includes a flap portion connected to the door portion, a support portion connected to the fixed portion, and the flap portion. And a substantially U-shaped hinge portion formed between the support portion and
An inner case in which the airbag opening portion structure according to any one of claims 1 to 4 is adopted in an airbag opening portion structure including the opening, the outer panel, and the inner panel. . An airbag that is normally folded and inflated and deployed in an emergency, an inflator that supplies gas to the airbag, a retainer that accommodates at least the airbag, and an airbag opening formed in a vehicle structure. An airbag device having an outer panel that covers an opening, an inner case that is connected to the inside of the outer panel and locks a retainer,
The outer panel has a door portion that opens the opening when the airbag is deployed, and a fixing portion that is connected to the vehicle structure, and the inner case is an inner panel that is connected to the outer panel; A side wall that forms a space for accommodating a retainer in which an airbag is stored, and the inner panel includes a flap portion connected to the door portion, a support portion connected to the fixed portion, and the flap portion. And a substantially U-shaped hinge portion formed between the support portion and
The airbag opening part structure in any one of Claims 1-4 was employ | adopted for the airbag opening part structure comprised from the said opening part, the said outer panel, and the said inner panel. apparatus.